Improvement in lubricators



@tutti @une JOSEPH L. DIGKIN'SON, 0F DUBKUQUE, IOWA.

Letters Patent No. 110,215, dated December 2,0, 1870.

IMPROVEMENT IN LUBRICATORS.

The Schedule referred to in vthese Letters Patent and making part of the same.

`To all whom 'it may concern:

Be it known that I, JOSEPH L. Drcmsson, of Dubuque, infthe county of Dubuque andu Stateof Iowa, have invented-,a lnew and useful Improve- 'mentin Lubricators; audl 'do hereby declare that the following is a full, clear, 'and exact-'description thereof, which will enable others skilled in the art ,tomake and use the same, reference being had to the accompanying drawing forming part of this specification.

The object of this invention is to provide suitable and convenient means'for introducing oil or other lubricating material into steam-cylinders and other places under pressure of steam or other fluids; and

It consists in the mode 'of introducing the oil into the oil reservoir, and discharging it into the cylinder under'pressure, as will `be hereinafter more fully described.

Figure 1in the accompanying drawing represents a vertical central 'section of my improved lubricator.

4Figure 2 is a cross-section ou the line :c x of g. l.

Similarletters of reference indicate corresponding A is the oil-reservoir. Bis the oil-cup, which is attached to the top ofthe tube C.

vD isa valve' on' this tube, whose seat is in the bottom-of the reservoir A, as seen at E.

F is a valve ou the bottom of the stem G, whose seat is on the'bottom ofthe tube O. The stem G nearly lls the tube, and extends up tothe point'H.

Iis a spring, which is attached to the stem and arranged to press upward and close the valve F.

J is a. thumbscrew, in the bottom of the receivingcup B, attached to the btnstom end of which is along v stem, K, which passes down through the tube O until I it strikes the top end of the valve-stem G, as seen in the drawing.

The cup B valvel).

The valve Fis opeuedby screwing down the thumhscrew J. v L is au orifice in the side ot" the tube C; M is a'stuling-box ou the screw section lbl, through which the tube C works. l rlhe base O ot'` the reservoirV is screwed into the cylinder-heul, or into any vessel which is designed to be used under pressure.- as seen in the drawing.

rlhe introduction of the oil is as follows: rlhe thumb-'screw J is taken out and oil is poured into the cup B, which nds its way into the reservoir through the orilice L. lhe thumb-screw is then replaced and screwed down, thus opening the 'valve F, thereby permitting the steam to pass upward through the tube Vinto the reservoir above the oil, thus producing an equilibrium of pressure above and below. Then by turning the cup B, the valve I) is opened, and the oil flows out by its own gravity.

Having thus described my invent-ieu,

I claim as new and desire to secure by Letters Patenty The tube C, with the orifice L and valve D, the stem G and valve F, and the thumb-'screw J, with the .stem K, in combination with the reservoir A, arranged to operate substantially as and for the purposes herein shown and described.

JOSEPH L. DIOKINSON. Witnesses: 4

WM. M. IIAMLIN, A. J. PATCH.

gives a liandlxoldfor operating the' 

